CN103022576A - Hydrogen-nickel button battery - Google Patents
Hydrogen-nickel button battery Download PDFInfo
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- CN103022576A CN103022576A CN2012105506190A CN201210550619A CN103022576A CN 103022576 A CN103022576 A CN 103022576A CN 2012105506190 A CN2012105506190 A CN 2012105506190A CN 201210550619 A CN201210550619 A CN 201210550619A CN 103022576 A CN103022576 A CN 103022576A
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- battery
- electrode plate
- steel shell
- hydrogen
- negative electrode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
Abstract
The invention discloses a hydrogen-nickel button battery. The invention adopts the technical scheme as follows: the hydrogen-nickel button battery comprises a negative electrode cover, a rubber ring, an elastic component, a battery electrode plate set and a positive electrode steel shell, wherein the edge of the negative electrode cover has a flanging structure; salient points are pressed in the middle of the bottom of the positive electrode steel shell into the positive electrode steel shell; the elastic component between the negative electrode cover and the battery electrode plate set is a conical spiral spring; a big opening end of the conical spiral spring faces to the negative electrode cover; a small opening end of the conical spiral spring faces to the battery electrode plate set; the rubber ring is a straight rubber ring with a clamping ring; and the battery electrode plate set consists of a multi-connecting sheet nickel positive electrode plate, a multi-connecting sheet hydrogen storing alloy negative electrode plate and a three-wafer diaphragm in non-linear arrangement between the positive electrode plate and the negative electrode plate. Electrolyte is freely separated out and dipped in charging and discharging processes, so that nickel hydroxide has a relatively high utilization rate, the production cost is reduced and energy sources are saved; the rubber ring has high sealing performance; and the internal resistance of the hydrogen-nickel button battery is consistent.
Description
Technical field
The invention belongs to the button cell technical field, be specifically related to a kind of MH-Ni buckle type battery.
Background technology
The bottom of conventional MH-Ni buckle type anode box hat is planar structure, positive plate and positive pole steel shell bottom is plane-plane contact during assembling, electrolyte is difficult to infiltrate into whole positive plate after adding electrolyte, cause in the positive plate utilance of nickel hydroxide low, in addition, because the deviation of utmost point group thickness, part battery assembling elasticity is less, cause the individual cell internal resistance larger, also cause simultaneously the individual cell charging/discharging voltage unstable, concrete manifestation is the charging and discharging curve indentation of battery, has affected the stable output of battery electric current and voltage when reality is used, and causes the electrical appliance erroneous judgement of battery performance to be affected the use of electrical equipment; The button Ni-H cell internal resistance consistency of producing at present is poor, and the charging and discharging curve of minority battery is sometimes also unstable, indentation, and reason is that the assembling elasticity of battery differs greatly and causes.Some company has added corrugated gasket in negative side for this reason, but because the corrugated gasket elastic range is little, the reasons such as the easy decay of elasticity, the poor problem of consistency of internal resistance of battery is improved little.Therefore be necessary to design the MH-Ni buckle type battery that a kind of raw material availability is high, electrolyte permeability is effective, rubber sealing is firm and consistency of internal resistance of battery is good.
Summary of the invention
The technical problem that the present invention solves has provided a kind of MH-Ni buckle type battery, the electrolyte of this button cell is freely separated out in charge and discharge process and is immersed, make nickel hydroxide have higher utilance, reduce production cost and also saved the energy, rubber sealing is firm, and the reaching unanimity property of internal resistance of this MH-Ni buckle type battery.
Technical scheme of the present invention is: a kind of MH-Ni buckle type battery, comprise negative cover, cushion rubber, elastomeric element, battery pole plates group and positive pole steel shell, and it is characterized in that: the edge of described negative cover is turnup structure; The middle part of described positive pole steel shell bottom surface is pressed with salient point to the inside of positive pole steel shell; Elastomeric element between described negative cover and the battery pole plates group is tapered coil spring, and the big opening end of this tapered coil spring is towards negative cover, and the osculum end is towards the battery pole plates group; Described cushion rubber is the straight body cushion rubber of band clasp; Described battery pole plates group by the nickel positive electrode plate of many in flakes structures, how in flakes structure the hydrogen-storage alloy negative plate and be arranged on positive plate and negative plate between non-rectilinear arrange three wafer architecture barrier films and form.
The present invention is by making button Ni-H cell positive pole steel shell into the structure with salient point, can make electrolyte in the battery in charge and discharge process, freely separate out and immerse, improved the utilance of nickel hydroxide, reached the effect that reduces cost, economizes on resources, simultaneously make again positive plate tightr with contacting of positive pole steel shell, solved the poor and unsettled problem of charging/discharging voltage of consistency of internal resistance of battery, moreover freely the infiltrating and flow and improved other performances of battery of electrolyte, such as the raising of high rate during charging-discharging and the raising of discharge voltage plateau etc.Use tapered coil spring to reduce the internal resistance of battery, improved the consistency of internal resistance, improve the high-rate battery discharge performance, can rebound behind the tapered coil spring stress deformation, after load acquired a certain degree, spring was also tight gradually successively from the great circle to the roundlet, after spring begins contact, characteristic line is non-linear, rigidity increases gradually, and the natural frequency of vibration is variate, is conducive to eliminate or relax resonance, this spring structure is compact, good stability.Battery is in continuous charge and discharge process like this, and spring can and shrink up and down repeatedly along with the expansion of pole plate group, and it is compact that the pole plate winding is touched, and electrolyte permeability is even, reduces electrochemical polarization, thereby reduces internal resistance, improves heavy-current discharge performance.The belt sealing of the turnup structure at this negative cover edge has replaced present line style sealing, adopt simultaneously the cushion rubber of the straight body structure of band clasp, the increasing of sealed section has increased sealing pressure like this, improved the sealing of battery, has reduced the possibility that battery leakage is climbed alkali.
Description of drawings
Fig. 1 is structural representation of the present invention.
Drawing explanation: 1, negative cover, 2, elastomeric element, 3, punching pad or burr pad, 4, cushion rubber, 5, negative plate, 6, barrier film, 7, positive plate, 8, positive pole steel shell, 9, the pole plate group, 10, salient point.
Embodiment
Describe by reference to the accompanying drawings embodiment in detail.A kind of MH-Ni buckle type battery comprises negative cover 1, cushion rubber 4, elastomeric element 2, battery pole plates group 9 and positive pole steel shell 8, and the edge of described negative cover 1 is turnup structure; The middle part of described positive pole steel shell 8 bottom surfaces is pressed with salient point 10 to the inside of positive pole steel shell 8; Elastomeric element 2 between described negative cover 1 and the battery pole plates group 9 is tapered coil spring, and the big opening end of this tapered coil spring is towards negative cover 1, and the osculum end is towards battery pole plates group 9; Described cushion rubber 4 is the straight body cushion rubber of band clasp; Described battery pole plates group 9 by the nickel positive electrode plate 5 of many in flakes structures, how in flakes structure hydrogen-storage alloy negative plate 7 and be arranged on positive plate and negative plate between non-rectilinear arrange three wafer architecture barrier films 6 and form.
The MH-Ni buckle type battery is combined by pole plate group 9, elastomeric element 2, negative cover 1, cushion rubber 4 and positive pole steel shell 8, this pole plate group 9 by nickel positive electrode plate 7, the hydrogen storage alloy negative plate 5 of brace structure or single chip architecture and be arranged on positive plate and negative plate between barrier film 6 form.Concrete compound mode is: (1), first with flange negative cover 1 and and the straight body structure cushion rubber 4 of band clasp list combine; (2), the tapered coil spring great circle is put into combination cushion rubber 4 towards negative cover 1 direction, again punching pad or burr pad 3 are placed on the tapered coil spring 2 (whether put the punching pad or the burr pad depends on the battery cathode basis material); (3), negative plate 5, barrier film 6 and positive plate 7 cross foldings are become pole plate group 9 put in the assembly of first two steps formation; (4), filling electrolyte; (5), will be buckled in the positive pole steel shell 8 of salient point 10 structures on the combinations thereof body that added electrolyte; (6), sealing is the moulding battery.
Because the middle part of the rounded bottom surface of positive pole steel shell 8 is pressed with salient point 10 to the inside of positive pole steel shell 8, electrolyte in the battery can freely be separated out and immerse in charge and discharge process, improved the utilance of nickel hydroxide in the positive plate 7, gram volume improves 8%, weight saving is more than 10%, the charging voltage platform is lower, eliminated the unsettled problem of individual cell charging/discharging voltage, make the battery charging and discharging curve more level and smooth, internal resistance is more even, reduced the percent defective of battery, therefore battery cycle life also promotes more than 15%.
Tapered coil spring is used in the MH-Ni buckle type battery, and the one, the gas that produces in the time of storing charging can for the battery headspace guarantees that simultaneously the battery pole group can not be crushed to death; The 2nd, battery is subjected to can return to the original form behind the different pressures, the spring height can change along with being stressed difference, the spring height can return to original numerical value when pressurized not, like this so that inside battery pole plate group remains close contact, battery electrochemical polarization in charge and discharge process will reduce, reduce the internal resistance of cell, improve simultaneously the high-rate battery discharge performance; The 3rd, simple in structure, easily manufactured, price is low, can reduce production costs.
Make negative cover into turnup structure, so that becoming face, the draw-in groove of the flange of negative cover and cushion rubber contacts, so just increased sealing pressure, improved the sealing of battery, solved simultaneously the leakage that often occurs because the MH-Ni buckle type battery cathode is covered distinctive structure and climbed the alkali problem.The turnup structure battery is being carried out limit test 1C when overcharging, the phenomenon of leakage did not appear in 90 minutes in the 1C charging; Carrying out 45 ℃ of high temperature and shelving for a long time the alkali phenomenon not occur climbing in the time of half a year.The problem that this leakage often occurred and climb alkali during high temperature is shelved summer with regard to having solved the MH-Ni buckle type battery, the MH-Ni buckle type battery of the straight body structure of single sealing ring, simplify assembly technology, enhance productivity by changing ring structure, increase in addition the inside battery space, improved weight and the volume and capacity ratio of battery.
Claims (1)
1. a MH-Ni buckle type battery comprises negative cover, cushion rubber, elastomeric element, battery pole plates group and positive pole steel shell, it is characterized in that: the edge of described negative cover is turnup structure; The middle part of described positive pole steel shell bottom surface is pressed with salient point to the inside of positive pole steel shell; Elastomeric element between described negative cover and the battery pole plates group is tapered coil spring, and the big opening end of this tapered coil spring is towards negative cover, and the osculum end is towards the battery pole plates group; Described cushion rubber is the straight body cushion rubber of band clasp; Described battery pole plates group by the nickel positive electrode plate of many in flakes structures, how in flakes structure the hydrogen-storage alloy negative plate and be arranged on positive plate and negative plate between non-rectilinear arrange three wafer architecture barrier films and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105506190A CN103022576A (en) | 2012-12-18 | 2012-12-18 | Hydrogen-nickel button battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105506190A CN103022576A (en) | 2012-12-18 | 2012-12-18 | Hydrogen-nickel button battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103022576A true CN103022576A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105506190A Pending CN103022576A (en) | 2012-12-18 | 2012-12-18 | Hydrogen-nickel button battery |
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| Country | Link |
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| CN (1) | CN103022576A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110201A (en) * | 2017-12-27 | 2018-06-01 | 惠州亿纬锂能股份有限公司 | A kind of pole piece fixed mechanism and button cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286506A (en) * | 1999-08-27 | 2001-03-07 | 东芝电池株式会社 | Flat nonaqueous electrolyte secondary cell |
| CN201038255Y (en) * | 2007-03-29 | 2008-03-19 | 新乡创力电源厂 | Low inner resistance hydrogen-nickel fastener type rechargeable battery |
| CN202373645U (en) * | 2011-11-24 | 2012-08-08 | 比亚迪股份有限公司 | Nickel battery |
| CN202405336U (en) * | 2011-12-23 | 2012-08-29 | 协鑫动力新材料（盐城）有限公司 | Leaf spring and button type battery component based on leaf spring |
| CN202996991U (en) * | 2012-12-18 | 2013-06-12 | 河南创力新能源科技有限公司 | Hydrogen-nickel button cell |
-
2012
- 2012-12-18 CN CN2012105506190A patent/CN103022576A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1286506A (en) * | 1999-08-27 | 2001-03-07 | 东芝电池株式会社 | Flat nonaqueous electrolyte secondary cell |
| CN201038255Y (en) * | 2007-03-29 | 2008-03-19 | 新乡创力电源厂 | Low inner resistance hydrogen-nickel fastener type rechargeable battery |
| CN202373645U (en) * | 2011-11-24 | 2012-08-08 | 比亚迪股份有限公司 | Nickel battery |
| CN202405336U (en) * | 2011-12-23 | 2012-08-29 | 协鑫动力新材料（盐城）有限公司 | Leaf spring and button type battery component based on leaf spring |
| CN202996991U (en) * | 2012-12-18 | 2013-06-12 | 河南创力新能源科技有限公司 | Hydrogen-nickel button cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110201A (en) * | 2017-12-27 | 2018-06-01 | 惠州亿纬锂能股份有限公司 | A kind of pole piece fixed mechanism and button cell |
| CN108110201B (en) * | 2017-12-27 | 2021-08-24 | 惠州亿纬锂能股份有限公司 | Pole piece fixing mechanism and button cell |
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Address after: 453000, Henan, Xinxiang Province Yu East Industrial Agglomeration Area Applicant after: Henan Chuan Li new forms of energy Science and Technology Co., Ltd. Address before: 453000, Henan, Xinxiang Province Yu East Industrial Agglomeration Area Applicant before: Henan Troily New Power Energy Technology Co., Ltd. |
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Application publication date: 20130403 |